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D. most expensive ( )16. The box was ________ than I had expected. I was out of breath when I got home. A. more heavier B. much heavier C. little heavier D. very heavier ( ) 17. — My teachers often encourage me ________ more friends but I find it difficult. — Your teachers’ idea is right. The more friends you make, ________ you will be. A. to make。 the happier 【考點(diǎn)精練 】 ( )18. Peter speaks Chinese well indeed, but of course not ___________ a local speaker in China. A. so fluently as B. more fluent than C. as fluent as D. much fluently than ( )19. Li Lei is running _________ now. A. more and more slowly B. slowlier and slowlier C. slowly and slowly D. more slowly and more slowly 【考點(diǎn)精練 】 ( ) 20. The Changjiang River is one of ________ in the world. A. the longest rivers B. the longest river C. longer river